llvm-project/llvm
Pavel Labath fe09f506b6 Recommit "[Support] Add RetryAfterSignal helper function"
The difference from the previous version is the use of decltype, as the
implementation of std::result_of in libc++ did not work correctly for
variadic function like open(2).

Original summary:
This function retries an operation if it was interrupted by a signal
(failed with EINTR). It's inspired by the TEMP_FAILURE_RETRY macro in
glibc, but I've turned that into a template function. I've also added a
fail-value argument, to enable the function to be used with e.g.
fopen(3), which is documented to fail for any reason that open(2) can
fail (which includes EINTR).

The main user of this function will be lldb, but there were also a
couple of uses within llvm that I could simplify using this function.

Reviewers: zturner, silvas, joerg

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D33895

llvm-svn: 306671
2017-06-29 13:15:31 +00:00
..
bindings [NFC] Remove multiple semicolons 2017-06-28 23:15:16 +00:00
cmake TableGen.cmake: Use DEPFILE for Ninja Generator with CMake>=3.7. 2017-06-21 22:04:07 +00:00
docs fix various typos 2017-06-26 02:45:39 +00:00
examples [ORC] Re-apply r306166 and r306168 with fix for regression test. 2017-06-23 23:25:28 +00:00
include Recommit "[Support] Add RetryAfterSignal helper function" 2017-06-29 13:15:31 +00:00
lib Recommit "[Support] Add RetryAfterSignal helper function" 2017-06-29 13:15:31 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources
runtimes [CMake][runtimes] Add install target for runtimes builtins 2017-06-02 19:38:11 +00:00
test [GlobalISel][X86] Support vector type G_MERGE_VALUES selection. 2017-06-29 12:08:28 +00:00
tools [NFC] Remove multiple semicolons 2017-06-28 23:15:16 +00:00
unittests Recommit "[Support] Add RetryAfterSignal helper function" 2017-06-29 13:15:31 +00:00
utils [lit] Re-apply: Fix some convoluted logic around Unicode encoding, and de-duplicate across modules that used it. 2017-06-29 04:37:35 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [Solaris] replace Solaris.h hack with a set of better hacks 2017-06-22 13:18:46 +00:00
CODE_OWNERS.TXT [CODE_OWNERS] Add my other email address since my commits are now using my work email. 2017-06-24 03:26:01 +00:00
CREDITS.TXT Another test commit 2017-06-24 21:04:32 +00:00
LICENSE.TXT
LLVMBuild.txt
README.txt
RELEASE_TESTERS.TXT
configure
llvm.spec.in

README.txt

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